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| author | Kartik K. Agaram <vc@akkartik.com> | 2021-07-22 03:58:54 -0700 |
|---|---|---|
| committer | Kartik K. Agaram <vc@akkartik.com> | 2021-07-22 03:58:54 -0700 |
| commit | 5aea0c11b762a860b59e664dbd4bc3b9185934e0 (patch) | |
| tree | b254131081659f6406c2acb3138d9ad31b12e16f /boot.subx | |
| parent | d0f39e75ca761bb9c5fa6889ea0703e3700990a2 (diff) | |
| download | mu-5aea0c11b762a860b59e664dbd4bc3b9185934e0.tar.gz | |
update memory map doc and anticipate a gotcha
Diffstat (limited to 'boot.subx')
| -rw-r--r-- | boot.subx | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/boot.subx b/boot.subx index 18f54748..f8e04a09 100644 --- a/boot.subx +++ b/boot.subx @@ -15,10 +15,10 @@ # understand hardware interfaces well enough to explain to others. # Memory map of a Mu computer: -# code: currently 4 tracks loaded from the primary disk to [0x00007c00, 0x00048600) +# code: some tracks loaded from primary disk to [0x00007c00, 0x00080000) # stack: grows down from 0x02000000 to 0x01000000 -# heap: [0x02000000, 0x08000000) -# see 120allocate.subx; Qemu initializes with 128MB RAM by default +# heap: [0x02000000, 0x80000000) +# see 120allocate.subx; Qemu initializes with 128MB RAM by default; simulating 2GB RAM is known to work # Consult https://wiki.osdev.org/Memory_Map_(x86) before modifying any of # this. And don't forget to keep *stack-debug.subx in sync. |